Yaz Side Effects: I am sitting here reading these posts shaking my head in disbelie http://www.medications.com/effect/view/41733 I am sitting here reading these posts shaking my head in disbelief! I have been taking yaz for 8 months & have the following side effects: don't care about ANYTHING, snappy & extremely irritable all the time, absolutely HATE sex & I have never ever had that I was on Yaz for about a year. Wed, 15 Jul 2009 18:53:38 -0400 http://www.medications.com/effect/view/41733?item=21558 I was on Yaz for about a year. http://www.medications.com/effect/view/41733?item=21558 try again...I was on Yaz for about a year. My weight started to Wed, 15 Jul 2009 19:01:08 -0400 http://www.medications.com/effect/view/41733?item=21559 try again...I was on Yaz for about a year. My weight started to go up the last three months or so. At first i wasn't too disappointed, since i've always been thin and a few extra pounds didn't look bad at all, but then it crept up to a weight gain of 6lb http://www.medications.com/effect/view/41733?item=21559